Question
There was a leakage in the petrol tank. If 5litre of
petrol is leaked out per day then it would have lasted for 30 days. If the leakage was 7litre per day, then it would have lasted for only 24 days. For how many days would the petrol have lasted, if there is no leakage and it was completely used for the vehicle?Solution
Let x litre of petrol is used for transport purpose daily Then, (x + 5) × 30 = (x + 7) × 24 30x + 150 = 24x + 168 6x = 18 x = 3 Therefore, total quantity of oil = (3 + 5) × 30 = 240 litre Required number of days = 240/3 = 80 days
___________ refers to the degree of correlation of the same variables between two successive time intervals
Let X and Y be two related variables. The two regression lines are given by x-y+1=0 and 2x-y+4=0. The two regression lines pass through the point:
When we say that the estimator is BLUE. What does best signify here?
If bxy = 0.20 and rxy = 0.50, then byx is equal to:
Which of all the following is not an assumption of Marshall Consumer Theory of Demand?
Umar has the utility function U(b,w) = min (b,w) and Akshat has the utility function U(b,w) = bw. If we draw an Edgeworth box with b on the ho...
 The sum of squared deviation is minimum when taken from
For a positively sloped LM curve, which of the following statements is CORRECT?
Autocorrelated errors is about
Relevant for Exams:
